By Ada Carr

January 07 2018 07:45 PM EDT

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At a Glance

A water pipe that wasn't protected from the weather broke and caused flooding at JFK's Terminal 4, shutting down arriving international flights.

Officials shut down arriving international flights.

The Port Authority apologized for the incident, which it said was weather-related.

A water pipe broke Sunday at New York's John F. Kennedy International Airport, adding more delays at the airport which is still working to recover from Winter Storm Grayson.

In a statement Sunday night, the Port Authority of New York and New Jersey said a pipe that feeds a sprinkler system in Terminal 4 broke at about 2 p.m., sending roughly 3 inches of water into the terminal's west end, according to the Associated Press, and causing officials to shut down arriving international flights.

"What happened at JFK Airport is unacceptable, and travelers expect and deserve better," said Port Authority Executive Director Rick Cotton. "While the water pipe break that occurred appears to be weather-related, we have launched an investigation into the incident to determine exactly what occurred and why an internal pipe was not weather protected and whether any other failures contributed to this disruption."

The airport experienced a record-cold temperature of 4 degrees Sunday.

The Port Authority said international arrivals to Terminal 4 were suspended and passengers who had already arrived were taken to other terminals for processing. The terminal was reopened for arrivals Sunday night, according to WABC. Departures were not impacted.

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